package com.chenhao.springcloud.chenhaodesignservice.design.singler;

/**
 * Description:
 *
 * @author chenhao
 * @date 2020/12/8 16:18
 */
public class CourseImpl implements ICourseContent,ICourseManager{
    @Override
    public String getCourseName() {
        return null;
    }

    @Override
    public byte[] getCourseVideo() {
        return new byte[0];
    }

    @Override
    public void studyCourse() {

    }

    @Override
    public void refundCourse() {

    }
}
